Window-positioning device.



J. B. GLOWAGKI. WINDOW POSITIONING DEVICE.

APPLIOATION PILED AUG.30, 1912.

11,068,888. Patented July 29, 1913.

T V 2 SHEETS-SHEET 1.

J. B. GLOWAGKI. wmnow POSITIONING DEVICE.

APPLIOATIOH FILED AUILBO, 1912.

Patented July 29, 1913.

' 2 SHEETS-SHEET 2.

JOHN B. GLOWACKI, OF CHICAGO, ILLINOIS.

WINDOW-POSITIONING DEVICE.

Specification of Letters Patent.

Application filed August 30, 1912. Serial R0. 717,844.

Patented July 29., 1913.

To all whom z'tmay concern Be it known that I, JOHN B. GLOwAG I, acitizen of the United States, and a IGSIClBIlt of the city of Chicago,in the county of Cook and State of Illinois, have invented certain newand useful Improvements in Window- Positioning Devices; and I do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, and to thenumbers of reference marked thereon, which form a part of thisspecification.

This invention relates to improvements in window positioning devices andmore particularly to that class of positioning devices set forth in myprior application for patent for positioning devices for Windows, filedNov. 13,1911, Serial No. 659,930. It is an object of-the invention toprovide a construction whereby a plurality of spring pressed frictionrollers may be pivoted within the side rails of a sash in such a mannerthat the said rollers will at all times bear I against the jamb of thewindow with equal pressure.

It is also an important object of this invention to provide aconstruction which may be pivoted within the side rail l'of a sash upona screw or pin which is readily accessible from the exterior ofthe'sash.

It is-finally an object of this invention to provide a simple, durableand efficient window positioning device which will be inexpensive toconstruct and maintain-and'which may be readily applied to a sash by onethat has not had previous experience.

The invention (in a'preferred form) is illustrated in the drawings, andhereinafter more fully described.

In the drawings: Figure 1. is a front elevation, partly broken away, ofa window frame and sash, 'illustrating the application of devicesembodying my 'invention. Fig. 2 is an enlarged fragmentary view of asash showing the positioning device in elevation. Fig. 3 is anenlarged'fragmentary side elevation of the device shown in Figs. 1 and2. Fig. 4 is a sectiontaken on line 44 of Fig. 2. Fig. 5 illustrates themanner .in which the device may be attached to a metallic sash. Fig. 6is an enlarged fragmentary detail of one of the friction members. Fig. 7is a section on line 77 of Fig. 6.

As shown in the drawings: 1, indicates the side rail of a slidable sashsuch as window sash and 2 the jamb of the window frame. The sash andframe may, of course, be constructed in the usual or-any preferredmanner. The hanging stile or rail on each side of the sash, is providedin its outer edge with a recess which may be constructed in any suitablemanner by 'mortising or otherwise, as illustrated in Figs. 1, 2 and 4,

on each side of the sash, and near the mid-- dle of said stile or rail.

As shown, the positioning and holding device comprises a relativelyshort back plate 3, rigidly secured within .the recesses in the sash,and is provided midway between its ends with outwardly directed parallelapertured-lugs 4. A pivot plate 5., provided with a central aperturedlug 6, corresponding with the lugs 4, is pivoted to the'back plate 3, bymeans of a pivot pin or screw 7, W'lLlCll extends through an aperture 8,in one side 9, of the side rail of the sash and then through thecorresponding apertures in the lugs 4 and 6, and is then threaded lntothe adjacent portion 10, of the sash to afford a rigid construction.

As shown in Fig. 3, a sprin comprising a plurality of leaves 11, 12 and13, is firmly secured at its-middle upon the plate 5, by means of bolts14, which extend through the same and the clam ing plate 15. A fork oryoke 16, is rigi ly secured to each of the outwardly curved ends of theouter leaf 13, of the spring, and a friction wheel, comprisin a metallicor other suitable peripheral y grooved body portion 17, having aresilient tire 18, thereon, is journaled in each of said yokes. Asshown, the curveture of the upwardly and downwardly directed ends of theleaf spring is such as to normally project the wheels against the jambface. The construction illustrated in Fig. 5 is substantially identicalwith that shown in Fig. 4, except that the device is shown in connectionwith the sheet metal sash construction such as shown in my priorapplication for patent for sheet metal win dow and frame constructionSerial No. 717,845.

In assembling the device for use the back" 8, in the sash and thecorrespondingapertures in the lugs a and 6, and end thereof is threadedinto the sash.

The operation is as follows: After having secured the device in itsproper position in the friction rollers must consequently bear againstthe jambs with equal pressure and serve to hold the sash at all timestruein the frame. as well as prevent the rattling of the sash in theframe.

It is obvious from the construction de-- scribed that the springs forengaging the friction members against the jamb may be of any suitablekind and that other details of construction may be modified withoutdeparting from the principles of this invention. I therefore do notpurpose limiting the atent granted otherwise than necessitated by theprior art.

I claim as my invention:

1. The combination of a slidable Window sash, having a recess in eachside. rail thereof, of a back plate firmly secured in each recess,apertured lugs on said back plate,

a pivot plate having a lug thereon correthe inner noeases sponding withthe lugs on the back plate and adapted to extend therebetween, a

- gether.

2. The combination of a slidable window sash, having a recess in eachside rail thereof, of a 'backplate firmly securedin each recess,- a ivotplate, a spring connected with. said pivot plate, rollers journaled'thereon and forced normally outward thereby, and a pin extending fromthe exterior of the sash, through the back plate andpivotplate and intothe sash and acting to pivotally connect said back plate and pivot platetogether.

In testimony whereofIhave hereunto subscribed my name in the presence oftwo subscribing Witnesses.

JOHN B. GLOWAOKI.

Witnesses:

CHARLES W. HILLs, Jr., GEORGE R. Moon.

